Gap type pouring system for casting aluminum alloy metal type cylinder cover

Abstract

The present invention relates to a gap type pouring system for casting an aluminum alloy metal type cylinder cover, and belongs to the technical field of cylinder cover casting systems. The gap type pouring system comprises a gate cup, wherein the lower end of the gate cup is connected with two vertical runners, the terminal end of the vertical runner is connected with a horizontal runner, the bottom of the horizontal runner is provided with a filtration screen groove, the terminal end of the horizontal runner is provided with a gap type inner runner along a cast height direction, and the horizontal runner and the gap type inner runner are communicated. According to the gap type pouring system, improvement is performed based on a metal type bottom pouring type pouring, the gap type inner runner is arranged on the front end of the cast, structure design is reasonable, promotion is easy achieved, stable aluminum water filling molding is ensured, phenomena such as aluminum water oxidation, slag inclusion, pore forming and the like are effectively prevented, and cast quality is improved.

Description

technical field [0001] The invention relates to a gap pouring system for casting an aluminum alloy metal type cylinder head, and belongs to the technical field of cylinder head casting systems. Background technique [0002] At present, for a certain Chery cylinder head with a height of more than 100mm, the disadvantage of adopting the metal mold gravity casting top injection casting method is that when the aluminum liquid fills the cavity, the flow of the aluminum liquid is likely to be unstable, and splashes and impacts are prone to occur. The splashing of aluminum water can easily cause the oxidation of molten aluminum, forming secondary oxidation slag, and is not conducive to the discharge of gas in the cavity; the disadvantage of the bottom injection casting method of metal mold gravity casting is that the heat distribution of the mold is unreasonable, which is not conducive to the casting Sequential solidification can easily cause casting defects such as loose castings....

AI Technical Summary

Problems solved by technology

[0002] At present, for a certain Chery cylinder head with a height of more than 100mm, the disadvantage of adopting the metal mold gravity casting top injection casting method is that when the aluminum liquid fills the cavity, the flow of the aluminum liquid is likely to be unstable, and splashes and impacts are prone to occur. The splashing of aluminum water can easily cause the oxidation of molten aluminum, forming secondary oxidation slag, and is not conducive to the discharge of gas in the cavity; the disadvantage of the bottom injection casting method of metal mold gravity casting is that the heat distribution of the mold is unreasonable, which is not conducive to the casting Sequential solidification can easily cause casting defects such as loose castings

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